in colombia, our reporter katja dohne met the indigenous misak people, who are determined to protect their cultural identity and their tradition of nature conservation. >> when the misak indigenous people have important matters to discuss, they always sit by e fire. as 27-year-old nestor exains, 's the mosimportanplace in the hom our placenta is ct into thfire afterur birth. it's the ritual which joins us to the earth. if we all ave for e cities, rather than staying here, there will be no one who protects this area. anthen our beliefs, our language, the entire misak culture will be lost. >> nestor wants to do something to prevent that. together with his friends from the village, he'a member o the sociacion rdin botano las licias." that's traditions alive.signed everything in the garden is planted in circles. the beds are round, too. here, they cultivate plants that their ancestors also used --every plant here hasts own special purpose. >>hen womeare menstrting, take thseeds ofue. th helps uagainst e cold. thi. that's why we use it to tackle a fever. and this is cnabis. it helps for s